Door locking and operating mechanism.



, A. G. SOHN.

DOOR LOOKING AND OPERATING MECHANISM.

APPLICATION FILED JULY 1, 1914.

1,125,754. Patented Jan. 19, 1915.

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DOOR LOCKING AND OPERATING MECHANISM. I

APPLIOATION FILED JULY 1, 1914.

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. A. G. SOHN.

DOOR LOCKING AND OPERATING MECHANISM. APPLICATION FILED JULY 1, 1914.

1,125,754. Patented Jan.19,1915.

4 SHEETS-SHEET 3.

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A. G. SOHN.

DOOR LOGKING AND OPERATING MECHANISM.

APPLICATION FI-LBD JULY 1, 1914.

1,125,754. Patented Jan. 19, 1915.

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DOOR LOCKING AND OPERATING MECHANISM.

Specification of Letters Patent.

Patented J an. 19, 1915.

Application filed July 1, 1914. Serial N 0. 848,442.

To all whom it may concern:

Be it known that I, ANDREW G. SoHN, a citizen of the United States, residing at Leavenworth, in the county of Leavenworth and State of Kansas, have invented new and useful Improvements in Door Locking and Operating Mechanism, of which the following is a specification.

This invention relates to a door locking and operating mechanism, and especially to mechanism for locking, opening and closing prison cell doors, and particularly for locking and controlling a series of cell doors arranged in a continuous row.

The object of the invention is to provide a door locking and operating mechanism whereby all the doors of a continuous row of cellsmay be locked and unlocked, whereby any number of doors in the row may be unlocked, while the balance remain closed, whereby all-the doors may be dead locked and individually opened at each cell by means of a special key, whereby the locking mechanism of each door may be placed in snap lock position, so that the door may be individually pulled to and automatically locked, whereby all the open doors in a row may be locked in'open position, and whereby any number of doors of a series which remain open, while others are closed,

may be blocked or pulled to andlocked simultaneously in closed position.

A still further object of the invention is to provide simple, reliable and efiicient locking means for each door,'adapted to be controlled by a special key operating mechanism, common to the series of doors, and to provide simple, reliable and eiiicient mecha nism for opening and closing the doors from a single operating point.

With these and other objects in view, the invention consists of the features of con-- struction, combination and arrangement of parts herein fully described and clalmed, reference being had to the accompanying drawings in which Figure l is a front elevation showing a closed cell door locked by means of myinr proved locking and operating mechanism, the parts being broken away and in sect1on to better disclose the construction. Fig. 2 is a vertical section through acontrolling box showing in side elevation the means for controlling the locking mechanism of the doors. Fig. 3 is a similar vertical'section through the box showing in side elevation the means mg mechanism. Figs. 6 and 7 are views of one of the door locks, showing the same in dead locking and snap locking position.

Fig. 8 is a detail view of a part of the looking mechanism associated with a particular door. Figs. 9 and 10 are views of a key for operating each individual lock. Fig. 11 is a fragmentary detail view showing a door locked in open. position.

Referring to the drawings, 1 designates a cell door frame, and 2 the sliding door, of the ordinary or any preferred construction, which may be mounted at the top upon one or more supporting wheels or rollers 3 arranged to travel upon a suitable trackway. While but a single door is shown in the present instance as necessary to a disclosure of the invention, it is to be understood that the locking and operating mechanism is employed for controlling a series of doors arranged in a single row, as is common in prison cell construction.

Each door is provided with a locking stile 4t having locking slots or openings 5 therein, which are guarded by suitable hoods or keepers 6, said slots or openings being adapted to receive the hooked ends of a plurality of hooked locking bolts, of which any number may be employed in connection with each door. In the present instance I have shown a series of three bolts 7, 8 and 9,

for locking the door at the top, bottom and center, the said bolts 7 and 8 being pivotally mounted upon the locking jamb of the door frame, as shown at 10, while the central bolt 9 is pivotally mounted, as at 11, within a.

lock casing 12 fastened to the jamb.

The bolts 7 and 8 are pivotally connected, as at 13, with a vertically disposed bolt connecting rod or bar 14, which extends and is longitudinally movable through the lock casing 12, the portion of said rod or bar which passes through the casing being provided with a transverse slot 15 opening through one of its lateral edges, which slot receives a pin or stud 16 extending through a longitudinal slot 17 in the bolt 9, whereby said bolt may be pivotally connected with the controlling bar andv disconnected therefrom at will. The stud 16 is carried by a neath said lug, the bolt 9 is held in locking position and against releasin motion, and in such position the pin 16 1s dlsposed at the inner end of the slot 17 out of engagement 7 with the recess 15 in the bar 14, so that said bar may be shifted without affecting the bolt 9. When the block 18 is moved outwardly to a position clear of the lug 19, the pin 16 sets in. the notch 15 and thus engages the bolt 9 for movement with the bar 14, also connects the dead locking slide for movement therewith.

The bolts 7 and 8 are controlled solely by the controlling bar, while the bolt 9 is adapted to be shifted into and out of controlling engagement with said bar and to be operable by key controlled locking mechanism. This locking mechanism comprises a longitudinally movable setting slide 20 provided at its outer end with a socket 521 to receive a stem 22 depending from the dead locking block 18, by which said block is rendered longitudinally movable with the slide to the dead locking and releasing positions, and when in the latter named position said block is adapted by its aforesaid loose connection with the slide to move vertically with the bolt 9 and bar 14. The slide 20 is movable at its rear end between guides 23 and is provided with a key bit receiving notch or recess 24 and with a lug 25, which latter loosely engages the slots 26 in a series of key tumblers 27, whereby the tumblers are pivotally and slidably mounted on the setting slide, the said slide being also pro- 'vicled with a longitudinal slot 27 receiving a stud or pin 28 whereby the tumblers are guided at their forward ends in their movements. A spring 29, one or more, is provided to hold the tumblers in normal position, while the spring connects the bolt 9 with the casing and serves to throw said bolt into action when free for a snap looking action, as will be readily understood.

It will be evident from the foregoing description thatwhen the slide tumblers are in one position the dead locking block 18 is disposed beneath the dead locking lug 19, thus holding the safety bolt 9 from opening movement, in which position the bolt is disconnected from the controlling bar 19, and it will also be understood that when the slide is moved outwardly to setting or releasing position the dead locking block 18 will be adjusted to a position clear of the lug 19, thus connecting the bolt 9 with the controlling bar 14 and permitting said bolt to have locking and unlocking action. The bolt when in set or snap lock position is adapted to be controlled by a rotary throw tumbler 31 provided with an angular socket 32 and a forked or slotted portion 33 adapted to engage a pin or stud 34 on the bolt, said tumbler being journaled upon the easing so as to be manipulated by a key, by which the bolt may be manually operated for individual control of the locking mechanism of the door.

In Figs. 9 and 10 I have shown a form of key 35 which may be employed, said key having astem 36 provided with a bit 37 of proper form for coaction with the tumblers and setting slide, and also having an angular lug or projection 38 to fit within the socket 32 of the throw tumbler 31, whereby said'throw tumbler may be operated.

The bolt connecting bar 14 associated with the bolts of each door has an angularly bent upper end or arm 39 which extends'through a slot 40 in the upper end of a vertically movable bolt controlling bar 41, said arm being held from displacement by pins 42, and such construction affording a lost motion connection between the bars, requiring a preliminary motion of the bar 41 under certain conditions before a bolt shift ing action ispermitted. The bar 41 depends along the locking jamb of the door to a point below the lock casing and is provided with slots or openings 43 for the passage of the bolts 7 and 9, which slots or openings also form a means whereby the said bolts may beheld locked and maybe released for. locking movement under the action of the bar 14. When the bar 41 is at the limit of its downward movement the upper walls of-the respective slots 40 and 4 engage the arm 39 and; the bolts 7 and 9 and hold the bar 14 and said bolts from upward or releasing movement. When the bar 41 is elevated to a certain degree it will freethe bolts for an unlocking action without unlocking. them, thus setting them in snap lock position, while a further upward movement of said bar 41 will take up the lost motion connection between it and the arm 39 and lift the bar 14, by which all the bolts will be released or retracted. By means of the key 35, however, the central bolt 9 may be held dead locked at any time so that it can not be released, although the bars 14 and 41 may be permitted to have adjusting motion,-so as to avoid an interference with the control of the lock mechanisms" of other doors in which the central bolts 9 may not be dead locked.

The upper end of the bar 41 carries a block or rack bar 44 meshing with a toothed segment 45 pivotallymounted upon the lintel of the door frame, and which also meshes with a rack block or bar 46 on a bolt shifting bar 47 disposed longitudinally above the several doors in the cell group. The bar 47 is pivotally connected with the upper angularly disposed end 48 of an operating lever 49, which lever is arranged within a suitable box or casing and is when the door is open.

provided with a spring actuated lockingdog or pawl 51 to engage any one of a series of three seat notches'52, 53 and 54 in a rack bar 55. When the dog is in engagement with the notch 52 the lever 49 is disposed to hold the parts of the locking mechanism in dead locking position, in which position the bar ll is fully depressed. Whenthe dog is in engagement with the notch 53 the bar l7 is adjusted for a partial elevation of the bar 41, thus disposing the locking mechanism in snap lock position. When the dog is in looking engagement with the notch 5d, the lever a9 is'adjusted to the position in which the bar l7 is fully moved and the bar 41 fully elevated to adjust the bar 14 for an unlocking action, and it will be thus understood that all of the doors may be unlocked from a common point by adjustment of the lever 49 and the locking devices of all the doors adjusted for snap lock action from a common lever 49.

I also provide mechanism for locking the door open, pulling the door to, and blocking the door; This comprises a detent 56in the form of a bell crank pivoted to the door point by the adjustment of the frame and having one of its arms provided with a detent finger 57 and its other arm slotted to receive a pin upon the bar 47, as shown at 58, whereby the detent isslidably and pivotally connected with said bar so as to be thrown into and out of locking positions in the opposite directions of movement of said bar. The finger 57 is adapted to' engage a notch 59 in the lintel of the door 2, when said door is closed, and is also adapted to engage the forward edge of said lintel On the door.lintel is a lug or projection 60 adapted to be engaged by an arm 61 depending from a gang bar 62, attached to one of the stretches of a chain 63 passing around sprocket wheels 64:. This chain may extend the entire length of the cell structures above the series of doors, and the bar 62 will accordingly be provided with arms 61 equal in number to the various doors and adapted to engage similar projections 69 thereon. One of the sprocket wheels 6% is carried by the upper end of a shaft 65 provided at its lower end with 'a' beveled ear 66 meshin with a similar ear '67 on an operating shaft 68 provided with an angular end 69 to receive a socket on an operatin crank handle 70, which shaft and operating parts may be arranged within the box or casing 50 or at any other suitable or convenient point, and by turning the crank handle 70 in one direction it will be understood that the arm 61 will be moved toward the projection 60, while by turning the crank handle in the opposite direction the arm 61 will be moved away from the projection 60. When the lever 49 is in dead plementary means for holding the door closed. When the lever 49 is in snap looking position, the detent finger 57 is tilted to a position above the door, allowing the door to be freely opened or closed when released by the locking mechanism. l/Vhen the lever is in unlocking position, and the door is thrown open, the detent will be disposed in a tilted and inoperative position, but by adjusting the lever 49 back to dead locking position the bar &7 will drop, bringing the finger 57 to a position in front of the door lintel, thus locking the door in open position. Should any or all doors in one continuous row be left open or partially open, by proper manipulation of the crank handle 70 the arm 61 will be shifted to engage the projections 60 and shift the doors to closed position and snap locked by locking devices previously described. It will, of course, be understood that prior to unlocking any of the doors the crank handle 70 is turned to shift the closing arms 61 backwardly or to permit the doors to be opened.

I claim 1. In a door lock,'a lock casing, a pivotally mounted automatic bolt having a slot therein, key controlled means for retracting the bolt, a sliding bolt controlling bar having a lateral slot opening through one of its side edges, a dead locking block movable longitudinally of the bolt and laterally of the bar to dead locking and releasing posi- 5 tions and having a stud projecting through the slot in the bolt and movable into and out of engagement with the slot in the bar,

and key controlled means for shifting said block 7 and permitting movement of said block'with the bar on the sliding motions of the latter.

2. In a door lock, alock casing, a pivotally mounted automatic bolt having a slot therein, keycontrolled means for retracting said belt, a sliding bolt controlling bar having a lateral slot'opening through one of its side edges, a lug within the casing, a dead locking block slidably movable into and out of engagement with said lug for dead looking and releasing actions, said block having a socket therein, a stud carried by the block and movable-in the slot in the bolt and into and out of engagement with the slot in the bar, a key controlled slide for shifting said block, and a projection upon the slide engaging the socket in the block, whereby the latter is held connected with the slide and permitted to have vertical motion with the bolt and bar.

3. In a lock, a lock casing, a pivotally mounted automatic bolt, key controlled means for retracting said bolt, a dead looking member shiftable to dead locking and releasing positions and slidably connected with thebolt, a sliding. bolt controlling bar having-a lateral slot adapted to beengaged and-disengagedby the dead locking member in' its stated positions, and key controlled means for shifting, said locking member.

41;. In a door lock, a lock casing, a pivotallymounted automatic bolt having an elongated slot therein, key controlled means for retracting said bolt, a bolt controlling bar slidably mounted in the casing and havingia lateral slot, a dead locking membershiftable from dead looking to releasing positions, said member having a stud movable in the slot in the bolt and adapted for engagement with and disengagement from the slot in the bar in the stated positions of said dead locking member, key controlled means for shifting said dead locking memher.

5. In a door look, a lock casing, a pivotally mounted automatic locking bolt, key controlled means for retracting said bolt, a sliding bolt controlling bar, a dead locking element slidably engaging the bolt and slidable into and out of engagement with the bar to connect the bolt thereto or disconnect it therefrom, and a key controlled means for adjusting the dead locking member including a sliding element with which said dead locking element is loosely connected to permit said member to move with the bolt.

6. In a door look, a lock casing, a pivot ally mounted automatic lock bolt having a slot therein, key controlled means for retracting said bolt, a bolt controlling bar having a lateral slot, a dead locking block provided with a stud slidable in the slot in. the bolt and adapted to be moved into and out of engagement with the slot in the bar, a projection from said block, and a key con trolled means for shifting the block including a setting slide having a socket receiving said projection.

7. In a door locking device, the combination of a door frame, a sliding door, a plurality of pivoted bolts upon the door frame for locking the door in closed position, a

connecting bar between certain of said bolts,

means for shifting another of said bolts into and out of engagement with said bar and simultaneously dead locking and freehig the latter bolt. for snap locking action respectively, means for shifting said bar to control the bolts connected therewith, and

key actuated means for independently controlling. the other bolt.

8. In a doorlocking mechanism, the combination of locking bolts, a controlling bar connecting said bolts, another bolt inclependent of the first-named bolts, means for dead locking and throwing said independent'bolt in connection with the bar and simultaneously dead looking all the bolts, and throwing: said independent bolt out of connection with the bar to free said bar and in dependent bolt for independent movement, means for shifting the bar for locking and unlocking; the bolts connected therewith, and key actuated means for controlling the independent bolt. 7

9. In a door locking mechanism, upper and lower locking bolts, a controlling bar connected therewith, an intermediate automatic locking bolt, a key controlled dead locking device slidably connected with the intermediate bolt and movable into and out of engagement with said bar, and key controlled-means for retracting the intermediate bolt.

10. In a lock mechanism, a set of locking bolts, shifting means common to certain of said bolts for controlling the same, key controlled means for dead looking, retracting or freeing another of said bolts for snap locking action or retracting the same, and alsofor throwing said bolt into and out of engagement with said shifting means, a member for holding saidshifting means and latter-named bolt from action, and means for controlling said shifting means and member.

In testimony whereof I aflix my signature in presence oftwo witnesses.

V ANDRE N G. SOHN. lVitnesses: I

H. H. BoHM, H. W. LEMMER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, 13,0. V 

